Need help with number 8 and 9

Need Help With Number 8 And 9

Answers

Answer 1

Answer:

45° and 12

Step-by-step explanation:

The sum of the exterior angles of a polygon = 360°

(8)

The polygon has n = 8, that is 8 exterior angles, thus

exterior angle = 360° ÷ 8 = 45°

(9)

The number of sides n is

n = 360 ÷ 30 = 12

Answer 2

Answer:

45° 12 sides

Step-by-step explanation:

1) Every polygons interior angles is equal to 180 times two less than the amount of sides it has (i.e 180•(4-2)=360:quadrilateral) So applying that here we have eight sides so 180(8-2)=1080. Now divide that by 8 to get the measure of one angle and subtract it from 180 to get the exterior angle 45°

2) if the exterior angle is 30° then the interior angle is 150°. For this part i guess and checked but you can refer to the equation above. (180(x-2)=y/150)


Related Questions

Find the slope of the line passing through the points (-7, -3) and (6,-3

Answers

Answer:

-9/-1 is the slope

Step-by-step explanation:

-3-3/-7+6

Which of the following functions is graphed below

Answers

Answer:

D

Step-by-step explanation:

please I need help... Mrs. Morales wrote a test with 15 questions covering spelling and vocabulary. spelling questions (x) are worth 5 points and vocabulary questions (y) are worth 10 points the maximum number of points possible on the test is 100​

Answers

Answer:

5x+10y=100

Step-by-step explanation:

8 is 16 times what number

Answers

Answer:

1/2

Step-by-step explanation:

If you need an explanation just comment

Answer:

2 and you are in high school learning that?

Step-by-step explanation:

given f(x)=-x-2, find f (-6)

Answers

The answer is -8.
You plug -6 into the equation and you get
-6-2= -8

The sum of three consecutive numbers is 84. What is the largest of these numbers? (5 points) a 28 b 26 c 29 d 27

Answers

Answer:

The answer is c.29

Step-by-step explanation:

I used Google xD

Answer:

Largest number = 29

Step-by-step explanation:

Let the consecutive numbers by (x + 1) ; (x + 2) and (x +3)

x +1 + x + 2 + x + 3 = 84         {Combine like terms}

x + x +x + 1  + 2 + 3 = 84

               3x + 6 = 84

                    3x = 84 - 6

                     3x = 78

                        x = 78/3

x = 26

Largest number = x + 3 = 26 + 3

                           =29

Plz plz plz help
I’ll give brainliest to first correct answer!

Graph y=2/3x

Answers

Answer:

Graph for 0.666667*​x

Step-by-step explanation:

that what i found

Can someone please put these in order from least to greatest? Thanks
12x+6y=18
-0.5
12x+1.75
4

Answers

Answer:

Luna wanna play among us with me (sorry I’m bored) the code is: PXQMKF

Step-by-step explanation:

4. Solve the system of equations. (6 points)
2x-3y - 21
-6x+2y = 7
Part I: Explain the steps you would take to solve the system by eliminating the x-terms. (1 point)
Part II: Explain the steps you would take to solve the system by eliminating the y-terms. (2
points)
Part III: Choose either of the methods described in parts I or II to solve the system of equations.
Write your answer as an ordered pair. Show your work. (3 points)

Answers

1) If the first equation is 2x-3y=21, To eliminate the x-terms, I would multiply the first equation by -3. To make -6x+9y+63.

Then, I would subtract the second row from the first row to make 7y=-70

Next, divide both sides by 7 to solve for y. y = -10.

2) To eliminate the y-terms, I would multiply the first equation by 2 and the second equation by -3. It will make 4x-6y=42 and 18x-6y=-21.

Now, subtract the two equations to make -14x=63.

Lastly, divide both sides of the equation by -14 to find x. x = -9/2

3) The answer as an ordered pair is (-9/2, -10).

Have a wonderful day✨❤️

Write the equation of the line with the given point and slope: (−5, −3) slope=−35

Answers

Answer:

Slope-intercept form: y = -35x - 178

Point slope form: y + 3 = -35 x (x + 5)

Step-by-step explanation:

dang. Yall need to stop harrassing a girl for what she asks for. If she asks for perfume, she gets perfume. Nothing wrong with that. Comment if you agrreee/

Answers

Answer:

._.

Step-by-step explanation:

If she has money, she gets stuff. If she broke, doesn't work/help, and expects another person to buy it for her, she ain't gonna get anything. Either way, she better work for that perfume.

Answer:

h*ll yes theyre still human i dont know why people care about that stuff

Step-by-step explanation:

if they deserve it then who cares

Will mark brainliest for whoever answers

Answers

Answer:

the third one

Step-by-step explanation:

Answer: A

Step-by-step explanation:

23.82600 round to three significant figures​

Answers

Answer:

23.8 i think

Step-by-step explanation:

Answer:

[tex]23.83[/tex]

Step-by-step explanation:

[tex]--------------------------------------------[/tex]

According to Maths3000, Rounding to 3 significant figures is probably the most common way of rounding off. Rounding the number off to 3 significant figures means you require 3 non-zero digits from the start of the number. So in example 1, 27.1258 gets rounded to 27.1 figures.[tex]--------------------------------------------[/tex]

It is 23.83 because rounding by three significant figures is picking three of the last numbers, and rounding the 4th number. In this case, 6 is more than 5, so 23.82 becomes 23.83

[tex]--------------------------------------------[/tex]

Hope this helps! <3

[tex]--------------------------------------------[/tex]

sixty-seven AND ninety-four THOUSANDTHS in standard form.

Answers

Answer:

Yes it's standard form lol

Step-by-step explanation:

Can you help with 3,5,6 please Also can you explain how you did 5 please I dont understand well

Answers

Answer:

3) 46 5) 19.5 6) 31.2

Step-by-step explanation:

all the "y" numbers are the product of the "x" numbers being added or subtracted by something. In 5, y=x-1.5

what is the value of sin 70

Answers

0.77389068155

EXPLANATION

sin 70 = 0.77389068155

0.77389068155
..


......

Help me on letter b please

Answers

Use the commutative property to reorder the terms.
Then, simplify the product.
Finally, subtract the numbers.
Your final answer is 3.

Answer:

Answer: 2

Step-by-step explanation:

[tex](a-b)(a+b)=a^{2}- b^{2}[/tex]

[tex](\sqrt{5}-\sqrt{2} )(\sqrt{2}+\sqrt{5} )\\(\sqrt{5})^{2} -(\sqrt{2} )^{2}\\5-2=3[/tex]

NEED ASAPPPPPPPPPPPPPPPPP HURRY

Answers

Answer:

what

Step-by-step explanation:

Look at this graph: 100 90 80 70 60 50 40 30 20 10 Х 0 10 20 30 40 50 60 70 80 90 100 What is the slope?​

Answers

700 million trillion billion KABILLION could trillion billion reciprocal burst

How many solutions does a system of equations have when solving results in the statement 3=5​

Answers

Answer:

No solutions

Step-by-step explanation:

Answer:

they usually have the sum of an answer that they divided

Step-by-step explanation:

Help yall girl for 30 point

Answers

Answer:

cant help ya but if you go to math_way  they help with all sorts of stuff like this

Step-by-step explanation:

sorry!

I NEED HELP NOW PLEASE
Which decimal represents the portion that is NOT shaded?

0.003

0.03

0.3

3.0

Write how u solved it

Answers

Answer:

I think its 0.03 but I'm not a 100 percent sure

Write an integer that is located on a number line between the given integers.
13. -3,8
14. -24,22
15. -5,9
16. 0,4
17. -2,2
18. -17,-15

Answers

Creo que es la 15 porque si fuera otra pues no lo sé sería 12/56 y ya luego 4/5
The answer is 15 I hope this helped :)

(2, 6) & (2,7)
Find the slope

Answers

Answer:

1/0 or undefined (use undefined)

Step-by-step explanation:

7-6= 1/0

2-2=

1/0 isn't a real slope so it's undefined...

My dog, Lilly, weighs 3.8 pounds.
Round this to the nearest whole
number (ones place).
Lilly weighs about [?] pounds.

Answers

Answer:

4 pounds

Step-by-step explanation:

Since 8 is above 5 you would round the 3 up to a 4

(click the brain on the top right of my answer)

Answer:

4 pounds

Step-by-step explanation:

How do I solve for x

Answers

22\10=(7x-1)\(3x+1)

66x+22=70x-10

4x-32=0

4x=32

X=8


Jina is saving money to buy a bike. She has $63 and is going to save an additional $9 each week. The bike costs $198. In how many weeks will she have
enough money to buy the bike?
(a) Write an equation that could be used to answer the question above.
First, choose the appropriate form. Then, fill in the blanks with the
numbers 63, 9, and 198. Let w represent the number of weeks.

Answers

Answer:

Jina will have enough money to buy the bike in 15 weeks

Step-by-step explanation:

y = mx + b

198 = 9x + 63

Subtract 63 from both sides;

135 = 9x

Divide both sides by 9;

x = 15

Which choices are solutions to the following equation?
Check all that apply.
x^2 - 3x = -5/4

Answers

Answer:

The answer to this question is C.

PLEASE HELP ASAP WILL CHOOSE BRAINLIEST FOR CORRECT ANSWER GIVING 20 PTS

System A-
-x-2y=7
5x-6y=-3
Solution: (-3, -2)

Choose the correct option that explains what steps were followed to obtain the system of equations below.

System B:
-x-2y=7
-16y=32

A. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 3. The solution to system B will be the same as the solution to system A.
B. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -6. The solution to system B will not be the same as the solution to system A.
C. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -5. The solution to system B will not be the same as the solution to system A.
D. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 5. The solution to system B will be the same as the solution to system A.

please helpp and take ur time

Answers

Answer: A. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 5. The solution to system B will be the same as the solution to system A.

System A :

-x - 2y = 7 ..........(1)

5x - 6y = -3 ..........(2)

If we multiply the first equation by 5, then we will get :

5(- x - 2y) = 5(7)

⇒ - 5x - 10y = 35 ........... (3)

Now the Sum of equation (2) and equation (3) is:

⇒ Sum :  

Now if we replace the second equation in system A with this  , then we will get the system B.

Solution of system B:

First we will take the second equation as there is only one variable 'y'. So, we will solve that equation for 'y'

Now for solving 'x', we will plug y= -2 into the first equation

So, the solution of system B is (-3, -2), that means the solution of both systems are same.

Step-by-step explanation:

Answer: D:

To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 5. The solution to system B will be the same as the solution to system A.

Step-by-step explanation:

using the substitution property of equality, if y= -5 and 7y + x = 11, then ___

Answers

then x will equal to 46
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